import java.io.File;

public class Test8 {

	public static void main(String[] args) {
		File f1 = new File(args[0]);// d/jhh/kkk
		String name = args[1] + f1.getName();
		File f2 = new File(name);
		System.out.println(f1.renameTo(f2));

	}

}
